Haemorrhage from the gastrointestinal tract of a young dog resulted in melena with concurrent anaemia. Exploratory laparotomy revealed that the haemorrhage originated from an arteriovenous fistula in the jejunum. Resection of the abnormal part of the jejunum was curative. The arteriovenous fistula i...

An acute hemolytic transfusion reaction resulting from dog erythrocyte antigen (DEA) 1.1 incompatibility developed in a dog previously sensitized to DEA 1.1 by a transfusion 3 years earlier. The dog developed fever, pigmenturia, and lethargy, and its pcv did not rise as expected. The donor blood was...

Generalized amyloid protein A (AA) amyloidosis was diagnosed in a 12-week-old puppy which had been presented for intermittent lethargy, fever, and reluctance to walk. Diagnosis was made by histological examination of biopsies taken during exploratory laparotomy and was confirmed by PM. The primary c...

Failure to grow in pups and kittens can be the result of many factors. Dietary, metabolic, endocrine, parasitic, neoplastic, and genetic diseases may be responsible for a failure to thrive alone or in concert with other disorders. A complete history, physical examination, complete blood cell count, ...

Deficiency in immunoglobulin G (IgG) is associated with an increased susceptibility to infections in humans and animals, and changes in IgG levels occur in many disease states. In companion animals, failure of transfer of passive immunity is uncommonly diagnosed but mortality rates in puppies are hi...